Question 2. W2 I h t W The figure (not drawn to scale) shows the cross-section of a wooden beam made of nailed planks and subjected to the vertical shear force V. Given The vertical shear force V4 kN, the planks' thickness t = 10 mm the top flange width w = 310 mm, the bottom flange width w = 200 mm, the web height h = 240 mm, and the allowable force on each nail Fau = 0.75 kN, calculate the 2nd moment of area of the entire cross section I in 10. mm, the shear stresses at the neutral axis TN in MPa and the maximum spacing between nails 6, in mm. Enter your answers in the boxes below. The answers are acceptable within a tolerance of 1 10%. mm for the 2nd moment of area 0.1 MPa for the stress and 1 mm for the spacing. I: 10.mm(3 mark) TNA: MPa (3 mark) mm (3 mark)